Thermal Boiler Feed Pump

ABSTRACT

This invention involves thermal energy and head (height) difference of water level to feed the water into the boiler. This device uses very minimal electrical and mechanical energy to feed the water into the boiler as compared to the amount of both electrical and mechanical energy that is currently being used in the technology that is in use. 
     According to this invention, this device works with the thermal principle and uses a small amount of steam from the same boiler to feed the water back into that boiler. This is how the device saves huge amount of electrical power and reduces the maintenance as it very few valves instead of many high speed moving components that are being used in the existing technology.

FIELD OF INVENTION

This invention relates to an improved version of boiler water feed pump. These are used for all steam boilers to feed the water under pressure into the boiler.

BACKGROUND OF INVENTION

The existing technology is that, the water is fed into the boiler by means of boiler feed pump which consists of a multi stage centrifugal pumps.

However, the conventional feed pumps consume heavy electrical power and also need more maintenance due to its so many moving parts revolving at high RPM.

OBJECTS OF THE INVENTION

The primary object of the present invention is to provide an improved version of the existing device which replaces this high power consuming and higher maintenance boiler feed pumps.

Another object of the present invention is to save the precious electrical power energy of the country.

Still another object of the present invention is to reduce the maintenance of such machines.

BREIF SUMMARY OF THE INVENTION

This invention involves thermal energy and head difference of water level to feed the water into the boiler. This does not use electrical and mechanical energy to feed the water into the boiler as it is done in the available technology.

According to this invention, this device works with the thermal principle and uses the small amount of steam from the same boiler to feed the water into the boiler as explained in the diagram.

DETAIL DESCRIPTION OF INVENTION

Thermal steam pump is a device to feed water into the boiler without using any external source of energy. The water is fed into the boiler using steam generated by same boiler. The operation of system is cyclic, second cycle starts immediately after completion of first cycle. No external pumping unit is required to pump the feed water into boiler.

The thermal feed pump is introduced for pumping the water into the boiler. Refer diagram enclosed separately.

Following sequence of operations in one cycle are explained below:

I^(st) Operation

The air vent is opened to vent the air present in device. The feed water gets filled into the device due to head difference.

II^(nd) Operation

Water is fed into the boiler with help of pressurized steam. Steam is filled into the device from the same boiler at same pressure. The head difference makes water to enter into the boiler.

III^(rd) Operation

The pressurized steam is condensed using cooling water. It creates vacuum inside the device. The device is now ready to take next charge of water.

The cycle is repeated after third operation. Due to vacuum created by the condensed steam, water will easily fill into the device. 

1. The main claim of this invention is elimination of existing centrifugal boiler feed pump which are consuming a lot of electrical energy. The second claim is to eliminate the centrifugal high speed rotating components of existing boiler feed pumps which require high maintenance. This device will reduce the operating costs of boiler due to less power consumption and less maintenance. This device will save the nation's energy. This new invention of thermal boiler feed pump will save money of the industry, because it has very low electrical power consumption and very low maintenance. 